USA UNS S20161
Corresponding Standard ASTM A959-2019
Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N
Minimum Value - 3 4 - - 15 4 0.08
Maximum Value 0.15 4 6 0.045 0.03 18 6 0.2
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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